05 مهر 1400
آرش خسروي

آرش خسروی

مرتبه علمی: استادیار
نشانی: دانشکده مهندسی نفت، گاز و پتروشیمی - گروه مهندسی شیمی
تحصیلات: دکترای تخصصی / مهندسی شیمی
تلفن: 09106813449
دانشکده: دانشکده مهندسی نفت، گاز و پتروشیمی

مشخصات پژوهش

عنوان Effect of Charge, Size and Temperature on Stability of Charged Colloidal Nano Particles
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله CHINESE JOURNAL OF CHEMICAL PHYSICS
شناسه DOI
پژوهشگران عبداله گلچوبی فیروزجایی (نفر اول) ، آرش خسروی (نفر دوم) ، حمید مدرس (نفر سوم) ، علی احمدزاده (نفر چهارم)

چکیده

Molecular simulation of charged colloidal suspension is performed in NVT canonical ensemble using Monte Carlo method and primitive model. The well-known Derjaguin-Landau-Verwey-Overbeek theory is applied to account for e®ective interactions between particles. Effect of temperature, valance of micro-ions and the size of colloidal particles on the phase stability of the solution is investigated. The results indicate that the suspension is more stable at higher temperatures. On the other hand, for a more stable suspension to exist, lower micro-ion valance is favorable. For micro-ions of higher charge the number of aggregates and the number of particle in each of aggregate on average is higher. However for the best of our results larger colloidal particle are less stable. Comparing the results with theoretical formula considering the influence of surface curvature shows qualitative consistency.